viewfeed.js

   1 var active_post_id = false;
   2 var last_article_view = false;
   3 var active_real_feed_id = false;
   4
   5 // FIXME: kludges, needs proper implementation
   6 var _reload_feedlist_after_view = false;
   7
   8 var _cdm_wd_timeout = false;
   9 var _cdm_wd_vishist = new Array();
  10
  11 var article_cache = new Array();
  12
  13 var vgroup_last_feed = false;
  14 var post_under_pointer = false;
  15
  16 var last_requested_article = false;
  17
  18 function catchup_callback2(transport, callback) {
  19         try {
  20                 console.log("catchup_callback2 " + transport + ", " + callback);
  21                 notify("");
  22                 all_counters_callback2(transport);
  23                 if (callback) {
  24                         setTimeout(callback, 10);
  25                 }
  26         } catch (e) {
  27                 exception_error("catchup_callback2", e, transport);
  28         }
  29 }
  30
  31 function clean_feed_selections() {
  32         try {
  33                 var feeds = $("feedList").getElementsByTagName("LI");
  34
  35                 for (var i = 0; i < feeds.length; i++) {
  36                         if (feeds[i].id && feeds[i].id.match("FEEDR-")) {
  37                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  38                         }
  39                         if (feeds[i].id && feeds[i].id.match("FCAT-")) {
  40                                 feeds[i].className = feeds[i].className.replace("Selected", "");
  41                         }
  42                 }
  43         } catch (e) {
  44                 exception_error("clean_feed_selections", e);
  45         }
  46 }
  47
  48 function headlines_callback2(transport, feed_cur_page) {
  49         try {
  50
  51                 if (!transport.responseText && db) {
  52                         offlineConfirmModeChange();
  53                         return;
  54                 }
  55
  56                 loading_set_progress(100);
  57
  58                 console.log("headlines_callback2 [page=" + feed_cur_page + "]");
  59
  60                 if (!transport_error_check(transport)) return;
  61
  62                 clean_feed_selections();
  63
  64                 var is_cat = false;
  65                 var feed_id = false;
  66
  67                 if (transport.responseXML) {
  68                         var headlines = transport.responseXML.getElementsByTagName("headlines")[0];
  69                         if (headlines) {
  70                                 is_cat = headlines.getAttribute("is_cat");
  71                                 feed_id = headlines.getAttribute("id");
  72                                 setActiveFeedId(feed_id, is_cat);
  73                         }
  74                 }
  75
  76                 var ll = $('FLL-' + feed_id);
  77
  78                 if (!is_cat) {
  79                         var feedr = $("FEEDR-" + feed_id);
  80                         if (feedr && !feedr.className.match("Selected")) {
  81                                 feedr.className = feedr.className + "Selected";
  82                         }
  83                         if (feedr && ll) feedr.removeChild(ll);
  84                 } else {
  85                         var feedr = $("FCAT-" + feed_id);
  86                         if (feedr && !feedr.className.match("Selected")) {
  87                                 feedr.className = feedr.className + "Selected";
  88                         }
  89
  90                         var fcap = $("FCAP-" + feed_id);
  91                         if (fcap && ll) fcap.removeChild(ll);
  92
  93                 }
  94
  95                 var img = $('FIMG-' + feed_id);
  96
  97                 if (img && !is_cat) {
  98                         img.src = img.alt;
  99                 }
 100
 101                 var f = $("headlines-frame");
 102                 try {
 103                         if (feed_cur_page == 0) {
 104                                 console.log("resetting headlines scrollTop");
 105                                 f.scrollTop = 0;
 106                         }
 107                 } catch (e) { };
 108
 109                 if (transport.responseXML) {
 110                         var response = transport.responseXML;
 111
 112                         var headlines = response.getElementsByTagName("headlines")[0];
 113                         var headlines_info = response.getElementsByTagName("headlines-info")[0];
 114
 115                         if (headlines_info)
 116                                 headlines_info = JSON.parse(headlines_info.firstChild.nodeValue);
 117                         else
 118                                 console.log("didn't find headlines-info object in response");
 119
 120                         var headlines_count = headlines_info.count;
 121                         var headlines_unread = headlines_info.unread;
 122                         var disable_cache = headlines_info.disable_cache;
 123
 124                         vgroup_last_feed = headlines_info.vgroup_last_feed;
 125
 126                         if (headlines_count == 0) {
 127                                 _infscroll_disable = 1;
 128                         } else {
 129                                 _infscroll_disable = 0;
 130                         }
 131
 132                         var counters = response.getElementsByTagName("counters")[0];
 133                         var articles = response.getElementsByTagName("article");
 134                         var runtime_info = response.getElementsByTagName("runtime-info");
 135
 136                         if (feed_cur_page == 0) {
 137                                 if (headlines) {
 138                                         f.innerHTML = headlines.firstChild.nodeValue;
 139
 140                                         var cache_prefix = "";
 141
 142                                         if (is_cat) {
 143                                                 cache_prefix = "C:";
 144                                         } else {
 145                                                 cache_prefix = "F:";
 146                                         }
 147
 148                                         cache_invalidate(cache_prefix + feed_id);
 149
 150                                         if (!disable_cache) {
 151                                                 cache_inject(cache_prefix + feed_id,
 152                                                         headlines.firstChild.nodeValue, headlines_unread);
 153                                         }
 154
 155                                 } else {
 156                                         console.log("headlines_callback: returned no data");
 157                                 f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML data)') + "</div>";
 158
 159                                 }
 160                         } else {
 161                                 if (headlines) {
 162                                         if (headlines_count > 0) {
 163                                                 console.log("adding some more headlines...");
 164
 165                                                 var c = $("headlinesList");
 166
 167                                                 if (!c) {
 168                                                         c = $("headlinesInnerContainer");
 169                                                 }
 170
 171                                                 var ids = getSelectedArticleIds2();
 172
 173                                                 c.innerHTML = c.innerHTML + headlines.firstChild.nodeValue;
 174
 175                                                 console.log("restore selected ids: " + ids);
 176
 177                                                 for (var i = 0; i < ids.length; i++) {
 178                                                         markHeadline(ids[i]);
 179                                                 }
 180
 181                                         } else {
 182                                                 console.log("no new headlines received");
 183                                         }
 184                                 } else {
 185                                         console.log("headlines_callback: returned no data");
 186                                         notify_error("Error while trying to load more headlines");
 187                                 }
 188
 189                         }
 190
 191                         if (articles) {
 192                                 for (var i = 0; i < articles.length; i++) {
 193                                         var a_id = articles[i].getAttribute("id");
 194                                         console.log("found id: " + a_id);
 195                                         cache_inject(a_id, articles[i].firstChild.nodeValue);
 196                                 }
 197                         } else {
 198                                 console.log("no cached articles received");
 199                         }
 200
 201                         if (counters) {
 202                                 console.log("parsing piggybacked counters: " + counters);
 203                                 parse_counters(counters, false);
 204                         } else {
 205                                 console.log("counters container not found in reply, requesting...");
 206                                 request_counters();
 207                         }
 208
 209                         if (runtime_info) {
 210                                 console.log("parsing runtime info: " + runtime_info[0]);
 211                                 parse_runtime_info(runtime_info[0]);
 212                         } else {
 213                                 console.log("counters container not found in reply");
 214                         }
 215
 216                 } else {
 217                         console.log("headlines_callback: returned no XML object");
 218                         f.innerHTML = "<div class='whiteBox'>" + __('Could not update headlines (missing XML object)') + "</div>";
 219                 }
 220
 221                 if (typeof correctPNG != 'undefined') {
 222                         correctPNG();
 223                 }
 224
 225                 if (_cdm_wd_timeout) window.clearTimeout(_cdm_wd_timeout);
 226
 227                 if (!$("headlinesList") &&
 228                                 getActiveFeedId() != -3 &&
 229                                 getInitParam("cdm_auto_catchup") == 1) {
 230                         console.log("starting CDM watchdog");
 231                         _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 5000);
 232                         _cdm_wd_vishist = new Array();
 233                 } else {
 234                         console.log("not in CDM mode or watchdog disabled");
 235                 }
 236
 237                 _feed_cur_page = feed_cur_page;
 238                 _infscroll_request_sent = 0;
 239
 240                 notify("");
 241
 242                 remove_splash();
 243
 244         } catch (e) {
 245                 exception_error("headlines_callback2", e, transport);
 246         }
 247 }
 248
 249 function render_article(article) {
 250         try {
 251                 var f = $("content-frame");
 252                 try {
 253                         f.scrollTop = 0;
 254                 } catch (e) { };
 255
 256                 var fi = $("content-insert");
 257
 258                 try {
 259                         fi.scrollTop = 0;
 260                 } catch (e) { };
 261
 262                 fi.innerHTML = article;
 263
 264 //              article.evalScripts();
 265
 266         } catch (e) {
 267                 exception_error("render_article", e);
 268         }
 269 }
 270
 271 function showArticleInHeadlines(id) {
 272
 273         try {
 274
 275                 cleanSelected("headlinesList");
 276
 277                 var crow = $("RROW-" + id);
 278
 279                 if (!crow) return;
 280
 281                 var article_is_unread = crow.className.match("Unread");
 282
 283                 crow.className = crow.className.replace("Unread", "");
 284
 285                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
 286
 287                 var upd_img_pic = $("FUPDPIC-" + id);
 288
 289                 var cache_prefix = "";
 290
 291                 if (activeFeedIsCat()) {
 292                         cache_prefix = "C:";
 293                 } else {
 294                         cache_prefix = "F:";
 295                 }
 296
 297                 var view_mode = false;
 298
 299                 try {
 300                         view_mode = document.forms['main_toolbar_form'].view_mode;
 301                         view_mode = view_mode[view_mode.selectedIndex].value;
 302                 } catch (e) {
 303                         //
 304                 }
 305
 306                 if (upd_img_pic && (upd_img_pic.src.match("updated.png") ||
 307                                         upd_img_pic.src.match("fresh_sign.png"))) {
 308
 309                         upd_img_pic.src = "images/blank_icon.gif";
 310
 311                         cache_invalidate(cache_prefix + getActiveFeedId());
 312
 313                         cache_inject(cache_prefix + getActiveFeedId(),
 314                                 $("headlines-frame").innerHTML,
 315                                 get_feed_unread(getActiveFeedId()));
 316
 317                 } else if (article_is_unread && view_mode == "all_articles") {
 318
 319                         cache_invalidate(cache_prefix + getActiveFeedId());
 320
 321                         cache_inject(cache_prefix + getActiveFeedId(),
 322                                 $("headlines-frame").innerHTML,
 323                                 get_feed_unread(getActiveFeedId())-1);
 324
 325                 } else if (article_is_unread) {
 326                         cache_invalidate(cache_prefix + getActiveFeedId());
 327                 }
 328
 329                 markHeadline(id);
 330
 331         } catch (e) {
 332                 exception_error("showArticleInHeadlines", e);
 333         }
 334 }
 335
 336 function article_callback2(transport, id) {
 337         try {
 338                 console.log("article_callback2 " + id);
 339
 340                 if (!transport.responseText && db) {
 341                         offlineConfirmModeChange();
 342                         return;
 343                 }
 344
 345                 if (transport.responseXML) {
 346
 347                         if (!transport_error_check(transport)) return;
 348
 349 /*                      var ll = $('LL-' + id);
 350                         var content = $('HLC-' + id);
 351
 352                         if (ll && content) content.removeChild(ll); */
 353
 354                         var upic = $('FUPDPIC-' + id);
 355
 356                         if (upic) {
 357                                 upic.src = 'images/blank_icon.gif';
 358                         }
 359
 360                         if (id != last_requested_article) {
 361                                 console.log("requested article id is out of sequence, aborting");
 362                                 return;
 363                         }
 364
 365                         active_post_id = id;
 366
 367                         console.log("looking for articles to cache...");
 368
 369                         var articles = transport.responseXML.getElementsByTagName("article");
 370
 371                         for (var i = 0; i < articles.length; i++) {
 372                                 var a_id = articles[i].getAttribute("id");
 373
 374                                 console.log("found id: " + a_id);
 375
 376                                 if (a_id == active_post_id) {
 377                                         console.log("active article, rendering...");
 378                                         render_article(articles[i].firstChild.nodeValue);
 379                                 }
 380
 381                                 cache_inject(a_id, articles[i].firstChild.nodeValue);
 382                         }
 383
 384
 385                         showArticleInHeadlines(id);
 386
 387                         if (db) {
 388                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?", [id]);
 389                         }
 390
 391                         var reply = transport.responseXML.firstChild.firstChild;
 392
 393                 } else {
 394                         console.log("article_callback: returned no XML object");
 395                         //var f = $("content-frame");
 396                         //f.innerHTML = "<div class='whiteBox'>" + __('Could not display article (missing XML object)') + "</div>";
 397                 }
 398
 399                 var date = new Date();
 400                 last_article_view = date.getTime() / 1000;
 401
 402                 if (typeof correctPNG != 'undefined') {
 403                         correctPNG();
 404                 }
 405
 406                 if (_reload_feedlist_after_view) {
 407                         setTimeout('updateFeedList(false, false)', 50);
 408                         _reload_feedlist_after_view = false;
 409                 } else {
 410                         if (transport.responseXML) {
 411                                 var counters = transport.responseXML.getElementsByTagName("counters")[0];
 412
 413                                 if (counters) {
 414                                         console.log("parsing piggybacked counters: " + counters);
 415                                         parse_counters(counters, false);
 416                                 } else {
 417                                         console.log("counters container not found in reply, requesting...");
 418                                         request_counters();
 419                                 }
 420                         }
 421                 }
 422
 423                 notify("");
 424         } catch (e) {
 425                 exception_error("article_callback2", e, transport);
 426         }
 427 }
 428
 429 function view(id) {
 430         try {
 431                 console.log("loading article: " + id);
 432
 433                 if (offline_mode) return view_offline(id);
 434
 435                 var cached_article = cache_find(id);
 436
 437                 console.log("cache check result: " + (cached_article != false));
 438
 439                 enableHotkeys();
 440                 hideAuxDlg();
 441
 442                 var query = "?op=view&id=" + param_escape(id);
 443
 444                 var neighbor_ids = getRelativePostIds(active_post_id);
 445
 446                 /* only request uncached articles */
 447
 448                 var cids_to_request = Array();
 449
 450                 for (var i = 0; i < neighbor_ids.length; i++) {
 451                         if (!cache_check(neighbor_ids[i])) {
 452                                 cids_to_request.push(neighbor_ids[i]);
 453                         }
 454                 }
 455
 456                 console.log("additional ids: " + cids_to_request.toString());
 457
 458                 /* additional info for piggyback counters */
 459
 460                 if (tagsAreDisplayed()) {
 461                         query = query + "&omode=lt";
 462                 } else {
 463                         query = query + "&omode=flc";
 464                 }
 465
 466                 query = query + "&cids=" + cids_to_request.toString();
 467
 468                 var crow = $("RROW-" + id);
 469                 var article_is_unread = crow.className.match("Unread");
 470
 471                 if (!async_counters_work) {
 472                         query = query + "&csync=true";
 473                 }
 474
 475                 showArticleInHeadlines(id);
 476
 477                 if (!cached_article) {
 478
 479                         var upic = $('FUPDPIC-' + id);
 480
 481                         if (upic) {
 482                                 upic.src = getInitParam("sign_progress");
 483                         }
 484
 485                 } else if (cached_article && article_is_unread) {
 486
 487                         query = query + "&mode=prefetch";
 488
 489                         render_article(cached_article);
 490
 491                 } else if (cached_article) {
 492
 493                         query = query + "&mode=prefetch_old";
 494                         render_article(cached_article);
 495
 496                 }
 497
 498                 cache_expire();
 499
 500                 last_requested_article = id;
 501
 502                 new Ajax.Request("backend.php", {
 503                         parameters: query,
 504                         onComplete: function(transport) {
 505                                 article_callback2(transport, id);
 506                         } });
 507
 508                 return false;
 509
 510         } catch (e) {
 511                 exception_error("view", e);
 512         }
 513 }
 514
 515 function tMark(id) {
 516         return toggleMark(id);
 517 }
 518
 519 function tPub(id) {
 520         return togglePub(id);
 521 }
 522
 523 function tMark_afh_off(effect) {
 524         try {
 525                 var elem = effect.effects[0].element;
 526
 527                 console.log("tMark_afh_off : " + elem.id);
 528
 529                 if (elem) {
 530                         elem.src = elem.src.replace("mark_set", "mark_unset");
 531                         elem.alt = __("Star article");
 532                         Element.show(elem);
 533                 }
 534
 535         } catch (e) {
 536                 exception_error("tMark_afh_off", e);
 537         }
 538 }
 539
 540 function tPub_afh_off(effect) {
 541         try {
 542                 var elem = effect.effects[0].element;
 543
 544                 console.log("tPub_afh_off : " + elem.id);
 545
 546                 if (elem) {
 547                         elem.src = elem.src.replace("pub_set", "pub_unset");
 548                         elem.alt = __("Publish article");
 549                         Element.show(elem);
 550                 }
 551
 552         } catch (e) {
 553                 exception_error("tPub_afh_off", e);
 554         }
 555 }
 556
 557 function toggleMark(id, client_only, no_effects) {
 558
 559         try {
 560
 561                 var query = "?op=rpc&id=" + id + "&subop=mark";
 562
 563                 query = query + "&afid=" + getActiveFeedId();
 564
 565                 if (tagsAreDisplayed()) {
 566                         query = query + "&omode=tl";
 567                 } else {
 568                         query = query + "&omode=flc";
 569                 }
 570
 571                 var mark_img = $("FMPIC-" + id);
 572
 573                 if (!mark_img) return;
 574
 575                 var vfeedu = $("FEEDU--1");
 576                 var crow = $("RROW-" + id);
 577
 578                 if (mark_img.src.match("mark_unset")) {
 579                         mark_img.src = mark_img.src.replace("mark_unset", "mark_set");
 580                         mark_img.alt = __("Unstar article");
 581                         query = query + "&mark=1";
 582
 583                         if (db) {
 584                                 db.execute("UPDATE articles SET marked = 1 WHERE id = ?", [id]);
 585                         }
 586
 587                 } else {
 588                         mark_img.alt = __("Please wait...");
 589                         query = query + "&mark=0";
 590
 591                         if ($("headlinesList") && !no_effects) {
 592                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tMark_afh_off});
 593                         } else {
 594                                 mark_img.src = mark_img.src.replace("mark_set", "mark_unset");
 595                                 mark_img.alt = __("Star article");
 596                         }
 597
 598                         if (db) {
 599                                 db.execute("UPDATE articles SET marked = 0 WHERE id = ?", [id]);
 600                         }
 601
 602                 }
 603
 604                 if (!no_effects) update_local_feedlist_counters();
 605
 606                 if (!client_only) {
 607                         console.log(query);
 608
 609                         new Ajax.Request("backend.php", {
 610                                 parameters: query,
 611                                 onComplete: function(transport) {
 612                                         all_counters_callback2(transport);
 613                                 } });
 614
 615                 }
 616
 617         } catch (e) {
 618                 exception_error("toggleMark", e);
 619         }
 620 }
 621
 622 function togglePub(id, client_only, no_effects, note) {
 623
 624         try {
 625
 626                 var query = "?op=rpc&id=" + id + "&subop=publ";
 627
 628                 query = query + "&afid=" + getActiveFeedId();
 629
 630                 if (note != undefined) {
 631                         query = query + "&note=" + param_escape(note);
 632                 } else {
 633                         query = query + "&note=undefined";
 634                 }
 635
 636                 if (tagsAreDisplayed()) {
 637                         query = query + "&omode=tl";
 638                 } else {
 639                         query = query + "&omode=flc";
 640                 }
 641
 642                 var mark_img = $("FPPIC-" + id);
 643
 644                 if (!mark_img) return;
 645
 646                 var vfeedu = $("FEEDU--2");
 647                 var crow = $("RROW-" + id);
 648
 649                 if (mark_img.src.match("pub_unset") || note != undefined) {
 650                         mark_img.src = mark_img.src.replace("pub_unset", "pub_set");
 651                         mark_img.alt = __("Unpublish article");
 652                         query = query + "&pub=1";
 653
 654                 } else {
 655                         mark_img.alt = __("Please wait...");
 656                         query = query + "&pub=0";
 657
 658                         if ($("headlinesList") && !no_effects) {
 659                                 Effect.Puff(mark_img, {duration : 0.25, afterFinish: tPub_afh_off});
 660                         } else {
 661                                 mark_img.src = mark_img.src.replace("pub_set", "pub_unset");
 662                                 mark_img.alt = __("Publish article");
 663                         }
 664                 }
 665
 666                 if (!client_only) {
 667                         new Ajax.Request("backend.php", {
 668                                 parameters: query,
 669                                 onComplete: function(transport) {
 670                                         all_counters_callback2(transport);
 671
 672                                         var note = transport.responseXML.getElementsByTagName("note")[0];
 673
 674                                         if (note) {
 675                                                 var note_id = note.getAttribute("id");
 676                                                 var note_size = note.getAttribute("size");
 677                                                 var note_content = note.firstChild.nodeValue;
 678
 679                                                 var container = $('POSTNOTE-' + note_id);
 680
 681                                                 cache_invalidate(note_id);
 682
 683                                                 if (container) {
 684                                                         if (note_size == "0") {
 685                                                                 Element.hide(container);
 686                                                         } else {
 687                                                                 container.innerHTML = note_content;
 688                                                                 Element.show(container);
 689                                                         }
 690                                                 }
 691                                         }
 692
 693                                 } });
 694                 }
 695
 696         } catch (e) {
 697                 exception_error("togglePub", e);
 698         }
 699 }
 700
 701 function correctHeadlinesOffset(id) {
 702
 703         try {
 704
 705                 var hlist = $("headlinesList");
 706                 var container = $("headlinesInnerContainer");
 707                 var row = $("RROW-" + id);
 708
 709                 var viewport = container.offsetHeight;
 710
 711                 var rel_offset_top = row.offsetTop - container.scrollTop;
 712                 var rel_offset_bottom = row.offsetTop + row.offsetHeight - container.scrollTop;
 713
 714                 console.log("Rtop: " + rel_offset_top + " Rbtm: " + rel_offset_bottom);
 715                 console.log("Vport: " + viewport);
 716
 717                 if (rel_offset_top <= 0 || rel_offset_top > viewport) {
 718                         container.scrollTop = row.offsetTop;
 719                 } else if (rel_offset_bottom > viewport) {
 720
 721                         /* doesn't properly work with Opera in some cases because
 722                                 Opera fucks up element scrolling */
 723
 724                         container.scrollTop = row.offsetTop + row.offsetHeight - viewport;
 725                 }
 726
 727         } catch (e) {
 728                 exception_error("correctHeadlinesOffset", e);
 729         }
 730
 731 }
 732
 733 function moveToPost(mode) {
 734
 735         try {
 736
 737                 var rows;
 738
 739                 if (isCdmMode()) {
 740                         rows = cdmGetVisibleArticles();
 741                 } else {
 742                         rows = getVisibleHeadlineIds();
 743                 }
 744
 745                 var prev_id = false;
 746                 var next_id = false;
 747
 748                 if (!$('RROW-' + active_post_id)) {
 749                         active_post_id = false;
 750                 }
 751
 752                 if (active_post_id == false) {
 753                         next_id = getFirstVisibleHeadlineId();
 754                         prev_id = getLastVisibleHeadlineId();
 755                 } else {
 756                         for (var i = 0; i < rows.length; i++) {
 757                                 if (rows[i] == active_post_id) {
 758                                         prev_id = rows[i-1];
 759                                         next_id = rows[i+1];
 760                                 }
 761                         }
 762                 }
 763
 764                 if (mode == "next") {
 765                         if (next_id) {
 766                                 if (isCdmMode()) {
 767
 768                                         if (!cdmArticleIsActuallyVisible(next_id)) {
 769                                                 cdmScrollToArticleId(next_id);
 770                                         }
 771                                         cdmSelectArticles("none");
 772                                         toggleUnread(next_id, 0, true);
 773                                         toggleSelected(next_id);
 774
 775                                 } else {
 776                                         correctHeadlinesOffset(next_id);
 777                                         view(next_id, getActiveFeedId());
 778                                 }
 779                         }
 780                 }
 781
 782                 if (mode == "prev") {
 783                         if (prev_id) {
 784                                 if (isCdmMode()) {
 785                                         cdmScrollToArticleId(prev_id);
 786                                         cdmSelectArticles("none");
 787                                         toggleUnread(prev_id, 0, true);
 788                                         toggleSelected(prev_id);
 789                                 } else {
 790                                         correctHeadlinesOffset(prev_id);
 791                                         view(prev_id, getActiveFeedId());
 792                                 }
 793                         }
 794                 }
 795
 796         } catch (e) {
 797                 exception_error("moveToPost", e);
 798         }
 799 }
 800
 801 function toggleSelected(id) {
 802         try {
 803
 804                 var cb = $("RCHK-" + id);
 805
 806                 var row = $("RROW-" + id);
 807                 if (row) {
 808                         var nc = row.className;
 809
 810                         if (!nc.match("Selected")) {
 811                                 nc = nc + "Selected";
 812                                 if (cb) {
 813                                         cb.checked = true;
 814                                 }
 815
 816                                 // In CDM basically last selected article == active article
 817                                 if (isCdmMode()) active_post_id = id;
 818                         } else {
 819                                 nc = nc.replace("Selected", "");
 820                                 if (cb) {
 821                                         cb.checked = false;
 822                                 }
 823
 824                         }
 825
 826                         row.className = nc;
 827                 }
 828         } catch (e) {
 829                 exception_error("toggleSelected", e);
 830         }
 831 }
 832
 833 function toggleUnread_afh(effect) {
 834         try {
 835
 836                 var elem = effect.element;
 837                 elem.style.backgroundColor = "";
 838
 839         } catch (e) {
 840                 exception_error("toggleUnread_afh", e);
 841         }
 842 }
 843
 844 function toggleUnread(id, cmode, effect) {
 845         try {
 846
 847                 var row = $("RROW-" + id);
 848                 if (row) {
 849                         var nc = row.className;
 850                         var is_selected = row.className.match("Selected");
 851                         nc = nc.replace("Unread", "");
 852                         nc = nc.replace("Selected", "");
 853
 854                         // since we are removing selection from the object, uncheck
 855                         // corresponding checkbox
 856
 857                         var cb = $("RCHK-" + id);
 858                         if (cb) {
 859                                 cb.checked = false;
 860                         }
 861
 862                         // NOTE: I'm not sure that resetting selection here is a feature -fox
 863
 864                         if (cmode == undefined || cmode == 2) {
 865                                 if (row.className.match("Unread")) {
 866                                         row.className = nc;
 867
 868                                         if (effect) {
 869                                                 new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 870                                                         afterFinish: toggleUnread_afh,
 871                                                         queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 872                                         }
 873
 874                                 } else {
 875                                         row.className = nc + "Unread";
 876                                 }
 877
 878                                 if (db) {
 879                                         db.execute("UPDATE articles SET unread = not unread "+
 880                                                 "WHERE id = ?", [id]);
 881                                 }
 882
 883                         } else if (cmode == 0) {
 884                                 row.className = nc;
 885
 886                                 if (effect) {
 887                                         new Effect.Highlight(row, {duration: 1, startcolor: "#fff7d5",
 888                                                 afterFinish: toggleUnread_afh,
 889                                                 queue: { position:'end', scope: 'TMRQ-' + id, limit: 1 } } );
 890                                 }
 891
 892                                 if (db) {
 893                                         db.execute("UPDATE articles SET unread = 0 "+
 894                                                 "WHERE id = ?", [id]);
 895                                 }
 896
 897                         } else if (cmode == 1) {
 898                                 row.className = nc + "Unread";
 899
 900                                 if (db) {
 901                                         db.execute("UPDATE articles SET unread = 1 "+
 902                                                 "WHERE id = ?", [id]);
 903                                 }
 904
 905                         }
 906
 907                         update_local_feedlist_counters();
 908
 909                         // Disable unmarking as selected for the time being (16.05.08) -fox
 910                         if (is_selected) row.className = row.className + "Selected";
 911
 912                         if (cmode == undefined) cmode = 2;
 913
 914                         var query = "?op=rpc&subop=catchupSelected" +
 915                                 "&cmode=" + param_escape(cmode) + "&ids=" + param_escape(id);
 916
 917 //                      notify_progress("Loading, please wait...");
 918
 919                         new Ajax.Request("backend.php", {
 920                                 parameters: query,
 921                                 onComplete: function(transport) {
 922                                         all_counters_callback2(transport);
 923                                 } });
 924
 925                 }
 926
 927         } catch (e) {
 928                 exception_error("toggleUnread", e);
 929         }
 930 }
 931
 932 function selectionRemoveLabel(id) {
 933         try {
 934
 935                 var ids = getSelectedArticleIds2();
 936
 937                 if (ids.length == 0) {
 938                         alert(__("No articles are selected."));
 939                         return;
 940                 }
 941
 942 //              var ok = confirm(__("Remove selected articles from label?"));
 943
 944 //              if (ok) {
 945
 946                         var query = "?op=rpc&subop=removeFromLabel&ids=" +
 947                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 948
 949 //                      notify_progress("Loading, please wait...");
 950
 951                         cache_invalidate("F:" + (-11 - id));
 952
 953                         new Ajax.Request("backend.php", {
 954                                 parameters: query,
 955                                 onComplete: function(transport) {
 956                                         show_labels_in_headlines(transport);
 957                                         all_counters_callback2(transport);
 958                                 } });
 959
 960 //              }
 961
 962         } catch (e) {
 963                 exception_error("selectionAssignLabel", e);
 964
 965         }
 966 }
 967
 968 function selectionAssignLabel(id) {
 969         try {
 970
 971                 var ids = getSelectedArticleIds2();
 972
 973                 if (ids.length == 0) {
 974                         alert(__("No articles are selected."));
 975                         return;
 976                 }
 977
 978 //              var ok = confirm(__("Assign selected articles to label?"));
 979
 980 //              if (ok) {
 981
 982                         cache_invalidate("F:" + (-11 - id));
 983
 984                         var query = "?op=rpc&subop=assignToLabel&ids=" +
 985                                 param_escape(ids.toString()) + "&lid=" + param_escape(id);
 986
 987 //                      notify_progress("Loading, please wait...");
 988
 989                         new Ajax.Request("backend.php", {
 990                                 parameters: query,
 991                                 onComplete: function(transport) {
 992                                         show_labels_in_headlines(transport);
 993                                         all_counters_callback2(transport);
 994                                 } });
 995
 996 //              }
 997
 998         } catch (e) {
 999                 exception_error("selectionAssignLabel", e);
1000
1001         }
1002 }
1003
1004 function selectionToggleUnread(set_state, callback_func, no_error) {
1005         try {
1006                 var rows;
1007
1008                 if (isCdmMode()) {
1009                         rows = cdmGetSelectedArticles();
1010                 } else {
1011                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1012                 }
1013
1014                 if (rows.length == 0 && !no_error) {
1015                         alert(__("No articles are selected."));
1016                         return;
1017                 }
1018
1019                 for (i = 0; i < rows.length; i++) {
1020                         var row = $("RROW-" + rows[i]);
1021                         if (row) {
1022                                 var nc = row.className;
1023                                 nc = nc.replace("Unread", "");
1024                                 nc = nc.replace("Selected", "");
1025
1026                                 if (set_state == undefined) {
1027                                         if (row.className.match("Unread")) {
1028                                                 row.className = nc + "Selected";
1029                                         } else {
1030                                                 row.className = nc + "UnreadSelected";
1031                                         }
1032                                         if (db) {
1033                                                 db.execute("UPDATE articles SET unread = NOT unread WHERE id = ?",
1034                                                         [rows[i]]);
1035                                         }
1036                                 }
1037
1038                                 if (set_state == false) {
1039                                         row.className = nc + "Selected";
1040                                         if (db) {
1041                                                 db.execute("UPDATE articles SET unread = 0 WHERE id = ?",
1042                                                         [rows[i]]);
1043                                         }
1044                                 }
1045
1046                                 if (set_state == true) {
1047                                         row.className = nc + "UnreadSelected";
1048                                         if (db) {
1049                                                 db.execute("UPDATE articles SET unread = 1 WHERE id = ?",
1050                                                         [rows[i]]);
1051                                         }
1052                                 }
1053                         }
1054                 }
1055
1056                 if (rows.length > 0) {
1057
1058                         update_local_feedlist_counters();
1059
1060                         var cmode = "";
1061
1062                         if (set_state == undefined) {
1063                                 cmode = "2";
1064                         } else if (set_state == true) {
1065                                 cmode = "1";
1066                         } else if (set_state == false) {
1067                                 cmode = "0";
1068                         }
1069
1070                         var query = "?op=rpc&subop=catchupSelected" +
1071                                 "&cmode=" + cmode + "&ids=" + param_escape(rows.toString());
1072
1073                         notify_progress("Loading, please wait...");
1074
1075                         new Ajax.Request("backend.php", {
1076                                 parameters: query,
1077                                 onComplete: function(transport) {
1078                                         catchup_callback2(transport, callback_func);
1079                                 } });
1080
1081                 }
1082
1083         } catch (e) {
1084                 exception_error("selectionToggleUnread", e);
1085         }
1086 }
1087
1088 function selectionToggleMarked() {
1089         try {
1090
1091                 var rows;
1092
1093                 if (isCdmMode()) {
1094                         rows = cdmGetSelectedArticles();
1095                 } else {
1096                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1097                 }
1098
1099                 if (rows.length == 0) {
1100                         alert(__("No articles are selected."));
1101                         return;
1102                 }
1103
1104                 for (i = 0; i < rows.length; i++) {
1105                         toggleMark(rows[i], true, true);
1106                 }
1107
1108                 update_local_feedlist_counters();
1109
1110                 if (rows.length > 0) {
1111
1112                         var query = "?op=rpc&subop=markSelected&ids=" +
1113                                 param_escape(rows.toString()) + "&cmode=2";
1114
1115                         query = query + "&afid=" + getActiveFeedId();
1116
1117                         query = query + "&omode=lc";
1118
1119                         new Ajax.Request("backend.php", {
1120                                 parameters: query,
1121                                 onComplete: function(transport) {
1122                                         all_counters_callback2(transport);
1123                                 } });
1124
1125                 }
1126
1127         } catch (e) {
1128                 exception_error("selectionToggleMarked", e);
1129         }
1130 }
1131
1132 function selectionTogglePublished() {
1133         try {
1134
1135                 var rows;
1136
1137                 if (isCdmMode()) {
1138                         rows = cdmGetSelectedArticles();
1139                 } else {
1140                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1141                 }
1142
1143                 if (rows.length == 0) {
1144                         alert(__("No articles are selected."));
1145                         return;
1146                 }
1147
1148                 for (i = 0; i < rows.length; i++) {
1149                         togglePub(rows[i], true, true);
1150                 }
1151
1152                 if (rows.length > 0) {
1153
1154                         var query = "?op=rpc&subop=publishSelected&ids=" +
1155                                 param_escape(rows.toString()) + "&cmode=2";
1156
1157                         query = query + "&afid=" + getActiveFeedId();
1158
1159                         query = query + "&omode=lc";
1160
1161                         new Ajax.Request("backend.php", {
1162                                 parameters: query,
1163                                 onComplete: function(transport) {
1164                                         all_counters_callback2(transport);
1165                                 } });
1166
1167                 }
1168
1169         } catch (e) {
1170                 exception_error("selectionToggleMarked", e);
1171         }
1172 }
1173
1174 function cdmGetSelectedArticles() {
1175         var sel_articles = new Array();
1176         var container = $("headlinesInnerContainer");
1177
1178         for (i = 0; i < container.childNodes.length; i++) {
1179                 var child = container.childNodes[i];
1180
1181                 if (child.id && child.id.match("RROW-") && child.className.match("Selected")) {
1182                         var c_id = child.id.replace("RROW-", "");
1183                         sel_articles.push(c_id);
1184                 }
1185         }
1186
1187         return sel_articles;
1188 }
1189
1190 function cdmGetVisibleArticles() {
1191         var sel_articles = new Array();
1192         var container = $("headlinesInnerContainer");
1193
1194         if (!container) return sel_articles;
1195
1196         for (i = 0; i < container.childNodes.length; i++) {
1197                 var child = container.childNodes[i];
1198
1199                 if (child.id && child.id.match("RROW-")) {
1200                         var c_id = child.id.replace("RROW-", "");
1201                         sel_articles.push(c_id);
1202                 }
1203         }
1204
1205         return sel_articles;
1206 }
1207
1208 function cdmGetUnreadArticles() {
1209         var sel_articles = new Array();
1210         var container = $("headlinesInnerContainer");
1211
1212         for (i = 0; i < container.childNodes.length; i++) {
1213                 var child = container.childNodes[i];
1214
1215                 if (child.id && child.id.match("RROW-") && child.className.match("Unread")) {
1216                         var c_id = child.id.replace("RROW-", "");
1217                         sel_articles.push(c_id);
1218                 }
1219         }
1220
1221         return sel_articles;
1222 }
1223
1224
1225 // mode = all,none,unread
1226 function cdmSelectArticles(mode) {
1227         var container = $("headlinesInnerContainer");
1228
1229         for (i = 0; i < container.childNodes.length; i++) {
1230                 var child = container.childNodes[i];
1231
1232                 if (child.id && child.id.match("RROW-")) {
1233                         var aid = child.id.replace("RROW-", "");
1234
1235                         var cb = $("RCHK-" + aid);
1236
1237                         if (mode == "all") {
1238                                 if (!child.className.match("Selected")) {
1239                                         child.className = child.className + "Selected";
1240                                         cb.checked = true;
1241                                 }
1242                         } else if (mode == "unread") {
1243                                 if (child.className.match("Unread") && !child.className.match("Selected")) {
1244                                         child.className = child.className + "Selected";
1245                                         cb.checked = true;
1246                                 }
1247                         } else {
1248                                 child.className = child.className.replace("Selected", "");
1249                                 cb.checked = false;
1250                         }
1251                 }
1252         }
1253 }
1254
1255 function catchupPage() {
1256
1257         var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1258
1259         var str = __("Mark all visible articles in %s as read?");
1260
1261         str = str.replace("%s", fn);
1262
1263         if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1264                 return;
1265         }
1266
1267         if ($("headlinesList")) {
1268                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', true, 'Unread', true);
1269                 selectionToggleUnread(false, 'viewCurrentFeed()', true);
1270                 selectTableRowsByIdPrefix('headlinesList', 'RROW-', 'RCHK-', false);
1271         } else {
1272                 cdmSelectArticles('all');
1273                 selectionToggleUnread(false, 'viewCurrentFeed()', true)
1274                 cdmSelectArticles('none');
1275         }
1276 }
1277
1278 function deleteSelection() {
1279
1280         try {
1281
1282                 var rows;
1283
1284                 if ($("headlinesList")) {
1285                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1286                 } else {
1287                         rows = cdmGetSelectedArticles();
1288                 }
1289
1290                 if (rows.length == 0) {
1291                         alert(__("No articles are selected."));
1292                         return;
1293                 }
1294
1295
1296                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1297                 var str;
1298                 var op;
1299
1300                 if (getActiveFeedId() != 0) {
1301                         str = __("Delete %d selected articles in %s?");
1302                 } else {
1303                         str = __("Delete %d selected articles?");
1304                 }
1305
1306                 str = str.replace("%d", rows.length);
1307                 str = str.replace("%s", fn);
1308
1309                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1310                         return;
1311                 }
1312
1313                 query = "?op=rpc&subop=delete&ids=" + param_escape(rows);
1314
1315                 console.log(query);
1316
1317                 new Ajax.Request("backend.php", {
1318                         parameters: query,
1319                         onComplete: function(transport) {
1320                                         viewCurrentFeed();
1321                                 } });
1322
1323         } catch (e) {
1324                 exception_error("deleteSelection", e);
1325         }
1326 }
1327
1328 function archiveSelection() {
1329
1330         try {
1331
1332                 var rows;
1333
1334                 if ($("headlinesList")) {
1335                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1336                 } else {
1337                         rows = cdmGetSelectedArticles();
1338                 }
1339
1340                 if (rows.length == 0) {
1341                         alert(__("No articles are selected."));
1342                         return;
1343                 }
1344
1345
1346                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1347                 var str;
1348                 var op;
1349
1350                 if (getActiveFeedId() != 0) {
1351                         str = __("Archive %d selected articles in %s?");
1352                         op = "archive";
1353                 } else {
1354                         str = __("Move %d archived articles back?");
1355                         op = "unarchive";
1356                 }
1357
1358                 str = str.replace("%d", rows.length);
1359                 str = str.replace("%s", fn);
1360
1361                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1362                         return;
1363                 }
1364
1365                 query = "?op=rpc&subop="+op+"&ids=" + param_escape(rows);
1366
1367                 console.log(query);
1368
1369                 for (var i = 0; i < rows.length; i++) {
1370                         cache_invalidate(rows[i]);
1371                 }
1372
1373                 new Ajax.Request("backend.php", {
1374                         parameters: query,
1375                         onComplete: function(transport) {
1376                                         viewCurrentFeed();
1377                                 } });
1378
1379         } catch (e) {
1380                 exception_error("archiveSelection", e);
1381         }
1382 }
1383
1384 function catchupSelection() {
1385
1386         try {
1387
1388                 var rows;
1389
1390                 if ($("headlinesList")) {
1391                         rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1392                 } else {
1393                         rows = cdmGetSelectedArticles();
1394                 }
1395
1396                 if (rows.length == 0) {
1397                         alert(__("No articles are selected."));
1398                         return;
1399                 }
1400
1401
1402                 var fn = getFeedName(getActiveFeedId(), activeFeedIsCat());
1403
1404                 var str = __("Mark %d selected articles in %s as read?");
1405
1406                 str = str.replace("%d", rows.length);
1407                 str = str.replace("%s", fn);
1408
1409                 if (getInitParam("confirm_feed_catchup") == 1 && !confirm(str)) {
1410                         return;
1411                 }
1412
1413                 if ($("headlinesList")) {
1414                         selectionToggleUnread(false, 'viewCurrentFeed()', true);
1415                 } else {
1416                         selectionToggleUnread(false, 'viewCurrentFeed()', true)
1417                 }
1418
1419         } catch (e) {
1420                 exception_error("catchupSelection", e);
1421         }
1422 }
1423
1424 function editArticleTags(id, feed_id, cdm_enabled) {
1425         displayDlg('editArticleTags', id,
1426                            function () {
1427                                         $("tags_str").focus();
1428
1429                                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1430                                            "backend.php?op=rpc&subop=completeTags",
1431                                            { tokens: ',', paramName: "search" });
1432                            });
1433 }
1434
1435 function editTagsSave() {
1436
1437         notify_progress("Saving article tags...");
1438
1439         var form = document.forms["tag_edit_form"];
1440
1441         var query = Form.serialize("tag_edit_form");
1442
1443         query = "?op=rpc&subop=setArticleTags&" + query;
1444
1445         console.log(query);
1446
1447         new Ajax.Request("backend.php", {
1448                 parameters: query,
1449                 onComplete: function(transport) {
1450                                 try {
1451                                         console.log("tags saved...");
1452
1453                                         closeInfoBox();
1454                                         notify("");
1455
1456                                         if (tagsAreDisplayed()) {
1457                                                 _reload_feedlist_after_view = true;
1458                                         }
1459
1460                                         if (transport.responseXML) {
1461                                                 var tags_str = transport.responseXML.getElementsByTagName("tags-str")[0];
1462
1463                                                 if (tags_str) {
1464                                                         var id = tags_str.getAttribute("id");
1465
1466                                                         if (id) {
1467                                                                 var tags = $("ATSTR-" + id);
1468                                                                 if (tags) {
1469                                                                         tags.innerHTML = tags_str.firstChild.nodeValue;
1470                                                                 }
1471
1472                                                                 cache_invalidate(id);
1473                                                         }
1474                                                 }
1475                                         }
1476
1477                                 } catch (e) {
1478                                         exception_error("editTagsSave", e);
1479                                 }
1480                         } });
1481 }
1482
1483 function editTagsInsert() {
1484         try {
1485
1486                 var form = document.forms["tag_edit_form"];
1487
1488                 var found_tags = form.found_tags;
1489                 var tags_str = form.tags_str;
1490
1491                 var tag = found_tags[found_tags.selectedIndex].value;
1492
1493                 if (tags_str.value.length > 0 &&
1494                                 tags_str.value.lastIndexOf(", ") != tags_str.value.length - 2) {
1495
1496                         tags_str.value = tags_str.value + ", ";
1497                 }
1498
1499                 tags_str.value = tags_str.value + tag + ", ";
1500
1501                 found_tags.selectedIndex = 0;
1502
1503         } catch (e) {
1504                 exception_error("editTagsInsert", e);
1505         }
1506 }
1507
1508 function cdmScrollViewport(where) {
1509         console.log("cdmScrollViewport: " + where);
1510
1511         var ctr = $("headlinesInnerContainer");
1512
1513         if (!ctr) return;
1514
1515         if (where == "bottom") {
1516                 ctr.scrollTop = ctr.scrollHeight;
1517         } else {
1518                 ctr.scrollTop = where;
1519         }
1520 }
1521
1522 function cdmArticleIsBelowViewport(id) {
1523         try {
1524                 var ctr = $("headlinesInnerContainer");
1525                 var e = $("RROW-" + id);
1526
1527                 if (!e || !ctr) return;
1528
1529                 // article starts below viewport
1530
1531                 if (ctr.scrollTop < e.offsetTop) {
1532                         return true;
1533                 } else {
1534                         return false;
1535                 }
1536
1537         } catch (e) {
1538                 exception_error("cdmArticleIsVisible", e);
1539         }
1540 }
1541
1542 function cdmArticleIsAboveViewport(id) {
1543         try {
1544                 var ctr = $("headlinesInnerContainer");
1545                 var e = $("RROW-" + id);
1546
1547                 if (!e || !ctr) return;
1548
1549                 // article starts above viewport
1550
1551                 if (ctr.scrollTop > e.offsetTop + e.offsetHeight) {
1552                         return true;
1553                 } else {
1554                         return false;
1555                 }
1556
1557         } catch (e) {
1558                 exception_error("cdmArticleIsVisible", e);
1559         }
1560 }
1561
1562 function cdmScrollToArticleId(id) {
1563         try {
1564                 var ctr = $("headlinesInnerContainer");
1565                 var e = $("RROW-" + id);
1566
1567                 if (!e || !ctr) return;
1568
1569                 ctr.scrollTop = e.offsetTop;
1570
1571         } catch (e) {
1572                 exception_error("cdmScrollToArticleId", e);
1573         }
1574 }
1575
1576 function cdmArticleIsActuallyVisible(id) {
1577         try {
1578                 var ctr = $("headlinesInnerContainer");
1579                 var e = $("RROW-" + id);
1580
1581                 if (!e || !ctr) return;
1582
1583                 // article fits in viewport OR article is longer than viewport and
1584                 // its bottom is visible
1585
1586                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1587                                 ctr.scrollTop + ctr.offsetHeight) {
1588
1589                         return true;
1590
1591                 } else if (e.offsetHeight > ctr.offsetHeight &&
1592                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1593                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1594
1595                         return true;
1596
1597                 }
1598
1599                 return false;
1600
1601         } catch (e) {
1602                 exception_error("cdmArticleIsVisible", e);
1603         }
1604 }
1605
1606 function cdmWatchdog() {
1607
1608         try {
1609
1610                 var ctr = $("headlinesInnerContainer");
1611
1612                 if (!ctr) return;
1613
1614                 var ids = new Array();
1615
1616                 var e = ctr.firstChild;
1617
1618                 while (e) {
1619                         if (e.className && e.className == "cdmArticleUnread" && e.id &&
1620                                         e.id.match("RROW-")) {
1621
1622                                 // article fits in viewport OR article is longer than viewport and
1623                                 // its bottom is visible
1624
1625                                 if (ctr.scrollTop <= e.offsetTop && e.offsetTop + e.offsetHeight <=
1626                                                 ctr.scrollTop + ctr.offsetHeight) {
1627
1628 //                                      console.log(e.id + " is visible " + e.offsetTop + "." +
1629 //                                              (e.offsetTop + e.offsetHeight) + " vs " + ctr.scrollTop + "." +
1630 //                                              (ctr.scrollTop + ctr.offsetHeight));
1631
1632                                         ids.push(e.id.replace("RROW-", ""));
1633
1634                                 } else if (e.offsetHeight > ctr.offsetHeight &&
1635                                                 e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1636                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight) {
1637
1638                                         ids.push(e.id.replace("RROW-", ""));
1639
1640                                 }
1641
1642                                 // method 2: article bottom is visible and is in upper 1/2 of the viewport
1643
1644 /*                              if (e.offsetTop + e.offsetHeight >= ctr.scrollTop &&
1645                                                 e.offsetTop + e.offsetHeight <= ctr.scrollTop + ctr.offsetHeight/2) {
1646
1647                                         ids.push(e.id.replace("RROW-", ""));
1648
1649                                 } */
1650
1651                         }
1652
1653                         e = e.nextSibling;
1654                 }
1655
1656                 console.log("cdmWatchdog, ids= " + ids.toString());
1657
1658                 if (ids.length > 0) {
1659
1660                         for (var i = 0; i < ids.length; i++) {
1661                                 var e = $("RROW-" + ids[i]);
1662                                 if (e) {
1663                                         e.className = e.className.replace("Unread", "");
1664                                 }
1665                         }
1666
1667                         var query = "?op=rpc&subop=catchupSelected" +
1668                                 "&cmode=0" + "&ids=" + param_escape(ids.toString());
1669
1670                         new Ajax.Request("backend.php", {
1671                                 parameters: query,
1672                                 onComplete: function(transport) {
1673                                         all_counters_callback2(transport);
1674                                 } });
1675
1676                 }
1677
1678                 _cdm_wd_timeout = window.setTimeout("cdmWatchdog()", 4000);
1679
1680         } catch (e) {
1681                 exception_error("cdmWatchdog", e);
1682         }
1683
1684 }
1685
1686
1687 function cache_inject(id, article, param) {
1688         try {
1689                 if (!cache_check_param(id, param)) {
1690                         console.log("cache_article: miss: " + id + " [p=" + param + "]");
1691
1692                         if (db) {
1693
1694                            var date = new Date();
1695                       var ts = Math.round(date.getTime() / 1000);
1696
1697                                 db.execute("INSERT INTO cache (id, article, param, added) VALUES (?, ?, ?, ?)",
1698                                         [id, article, param, ts]);
1699                         } else {
1700
1701                                 var cache_obj = {};
1702
1703                                 cache_obj["id"] = id;
1704                                 cache_obj["data"] = article;
1705                                 cache_obj["param"] = param;
1706                                 cache_obj["added"] = new Date();
1707
1708                                 if (param) id = id + ":" + param;
1709
1710                                 if (has_local_storage())
1711                                         localStorage.setItem(id, JSON.stringify(cache_obj));
1712                                 else
1713                                         article_cache.push(cache_obj);
1714                         }
1715
1716                 } else {
1717                         console.log("cache_article: hit: " + id + " [p=" + param + "]");
1718                 }
1719         } catch (e) {
1720                 exception_error("cache_inject", e);
1721         }
1722 }
1723
1724 function cache_find(id) {
1725
1726         if (db) {
1727                 var rs = db.execute("SELECT article FROM cache WHERE id = ?", [id]);
1728                 var a = false;
1729
1730                 if (rs.isValidRow()) {
1731                         var a = rs.field(0);
1732                 }
1733
1734                 rs.close();
1735
1736                 return a;
1737
1738         } else {
1739
1740                 if (has_local_storage()) {
1741                         var cache_obj = localStorage.getItem(id);
1742
1743                         if (cache_obj) {
1744                                 cache_obj = JSON.parse(cache_obj);
1745
1746                                 if (cache_obj)
1747                                         return cache_obj['data'];
1748                         }
1749
1750                 } else {
1751                         for (var i = 0; i < article_cache.length; i++) {
1752                                 if (article_cache[i]["id"] == id) {
1753                                         return article_cache[i]["data"];
1754                                 }
1755                         }
1756                 }
1757         }
1758         return false;
1759 }
1760
1761 function cache_find_param(id, param) {
1762
1763         if (db) {
1764                 var rs = db.execute("SELECT article FROM cache WHERE id = ? AND param = ?",
1765                         [id, param]);
1766                 var a = false;
1767
1768                 if (rs.isValidRow()) {
1769                         a = rs.field(0);
1770                 }
1771
1772                 rs.close();
1773
1774                 return a;
1775
1776         } else {
1777
1778                 if (has_local_storage()) {
1779                         var cache_obj = localStorage.getItem(id + ":" + param);
1780
1781                         if (cache_obj) {
1782                                 cache_obj = JSON.parse(cache_obj);
1783
1784                                 if (cache_obj)
1785                                         return cache_obj['data'];
1786                         }
1787
1788                 } else {
1789                         for (var i = 0; i < article_cache.length; i++) {
1790                                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1791                                         return article_cache[i]["data"];
1792                                 }
1793                         }
1794                 }
1795         }
1796         return false;
1797 }
1798
1799 function cache_check(id) {
1800
1801         if (db) {
1802                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ?",
1803                         [id]);
1804                 var a = false;
1805
1806                 if (rs.isValidRow()) {
1807                          a = rs.field(0) != "0";
1808                 }
1809
1810                 rs.close();
1811
1812                 return a;
1813
1814         } else {
1815                 if (has_local_storage) {
1816                         if (localStorage.getItem(id))
1817                                         return true;
1818                 } else {
1819                         for (var i = 0; i < article_cache.length; i++) {
1820                                 if (article_cache[i]["id"] == id) {
1821                                         return true;
1822                                 }
1823                         }
1824                 }
1825         }
1826         return false;
1827 }
1828
1829 function cache_check_param(id, param) {
1830
1831         if (db) {
1832                 var rs = db.execute("SELECT COUNT(*) AS c FROM cache WHERE id = ? AND param = ?",
1833                         [id, param]);
1834                 var a = false;
1835
1836                 if (rs.isValidRow()) {
1837                         a = rs.field(0) != "0";
1838                 }
1839
1840                 rs.close();
1841
1842                 return a;
1843
1844         } else {
1845
1846                 if (has_local_storage) {
1847                         if (localStorage.getItem(id + ':' + param))
1848                                         return true;
1849                 } else {
1850                         for (var i = 0; i < article_cache.length; i++) {
1851                                 if (article_cache[i]["id"] == id && article_cache[i]["param"] == param) {
1852                                         return true;
1853                                 }
1854                         }
1855                 }
1856         }
1857         return false;
1858 }
1859
1860 function cache_expire() {
1861         if (db) {
1862                 var date = new Date();
1863                 var ts = Math.round(date.getTime() / 1000);
1864
1865                 db.execute("DELETE FROM cache WHERE added < ? - 1800 AND id LIKE 'FEEDLIST'", [ts]);
1866                 db.execute("DELETE FROM cache WHERE added < ? - 600 AND (id LIKE 'F:%' OR id LIKE 'C:%')", [ts]);
1867                 db.execute("DELETE FROM cache WHERE added < ? - 86400", [ts]);
1868
1869
1870         } else {
1871                 if (has_local_storage()) {
1872                         while (localStorage.length > 25) {
1873                                 localStorage.removeItem(localStorage.key(0));
1874                         }
1875                 } else {
1876                         while (article_cache.length > 25) {
1877                                 article_cache.shift();
1878                         }
1879                 }
1880         }
1881 }
1882
1883 function cache_flush() {
1884         article_cache = new Array();
1885 }
1886
1887 function cache_invalidate(id) {
1888         try {
1889
1890                 if (db) {
1891                         rs = db.execute("DELETE FROM cache WHERE id = ?", [id]);
1892                         return rs.rowsAffected != 0;
1893                 } else {
1894
1895                         if (has_local_storage()) {
1896                                 for (var i = 0; i < localStorage.length; i++) {
1897                                         var key = localStorage.key(i);
1898
1899                                         if (key == id || key.indexOf(id + ":") == 0)
1900                                                 localStorage.removeItem(key);
1901
1902                                 }
1903                         } else {
1904                                 var i = 0
1905
1906                                 while (i < article_cache.length) {
1907                                         if (article_cache[i]["id"] == id) {
1908                                                 console.log("cache_invalidate: removed id " + id);
1909                                                 article_cache.splice(i, 1);
1910                                                 return true;
1911                                         }
1912                                         i++;
1913                                 }
1914                         }
1915                 }
1916
1917                 console.log("cache_invalidate: id not found: " + id);
1918                 return false;
1919         } catch (e) {
1920                 exception_error("cache_invalidate", e);
1921         }
1922 }
1923
1924 function getActiveArticleId() {
1925         return active_post_id;
1926 }
1927
1928 function cdmClicked(id) {
1929         try {
1930                 var elem = $("RROW-" + id);
1931
1932                 if (elem) {
1933                         var id = elem.id.replace("RROW-", "");
1934                         active_post_id = id;
1935
1936 //                      cdmSelectArticles("none");
1937                         toggleUnread(id, 0, true);
1938 //                      toggleSelected(id);
1939
1940                 }
1941         } catch (e) {
1942                 exception_error("cdmClicked", e);
1943         }
1944 }
1945
1946 function preloadArticleUnderPointer(id) {
1947         try {
1948                 if (getInitParam("bw_limit") == "1") return;
1949
1950                 if (post_under_pointer == id && !cache_check(id)) {
1951
1952                         console.log("trying to preload article " + id);
1953
1954                         var neighbor_ids = getRelativePostIds(id, 1);
1955
1956                         /* only request uncached articles */
1957
1958                         var cids_to_request = Array();
1959
1960                         for (var i = 0; i < neighbor_ids.length; i++) {
1961                                 if (!cache_check(neighbor_ids[i])) {
1962                                         cids_to_request.push(neighbor_ids[i]);
1963                                 }
1964                         }
1965                         console.log("additional ids: " + cids_to_request.toString());
1966
1967                         cids_to_request.push(id);
1968
1969                         var query = "?op=rpc&subop=getArticles&ids=" +
1970                                 cids_to_request.toString();
1971
1972                         new Ajax.Request("backend.php", {
1973                                 parameters: query,
1974                                 onComplete: function(transport) {
1975                                         var articles = transport.responseXML.getElementsByTagName("article");
1976
1977                                         for (var i = 0; i < articles.length; i++) {
1978                                                 var id = articles[i].getAttribute("id");
1979                                                 if (!cache_check(id)) {
1980                                                         cache_inject(id, articles[i].firstChild.nodeValue);
1981                                                         console.log("preloaded article: " + id);
1982                                                 }
1983                                         }
1984                         } });
1985                 }
1986         } catch (e) {
1987                 exception_error("preloadArticleUnderPointer", e);
1988         }
1989 }
1990
1991 function postMouseIn(id) {
1992         try {
1993                 if (post_under_pointer != id) {
1994                         post_under_pointer = id;
1995                         if (!isCdmMode()) {
1996                                 window.setTimeout("preloadArticleUnderPointer(" + id + ")", 250);
1997                         }
1998                 }
1999
2000         } catch (e) {
2001                 exception_error("postMouseIn", e);
2002         }
2003 }
2004
2005 function postMouseOut(id) {
2006         try {
2007                 post_under_pointer = false;
2008         } catch (e) {
2009                 exception_error("postMouseOut", e);
2010         }
2011 }
2012
2013 function headlines_scroll_handler() {
2014         try {
2015
2016                 var e = $("headlinesInnerContainer");
2017
2018                 var toolbar_form = document.forms["main_toolbar_form"];
2019
2020                 console.log((e.scrollTop + e.offsetHeight) + " vs " + e.scrollHeight + " dis? " +
2021                         _infscroll_disable);
2022
2023                 if (e.scrollTop + e.offsetHeight > e.scrollHeight - 100) {
2024                         if (!_infscroll_disable) {
2025                                 console.log("more cowbell!");
2026                                 viewNextFeedPage();
2027                         }
2028                 }
2029
2030         } catch (e) {
2031                 exception_error("headlines_scroll_handler", e);
2032         }
2033 }
2034
2035 function catchupRelativeToArticle(below) {
2036
2037         try {
2038
2039
2040                 if (!getActiveArticleId()) {
2041                         alert(__("No article is selected."));
2042                         return;
2043                 }
2044
2045                 var visible_ids;
2046
2047                 if ($("headlinesList")) {
2048                         visible_ids = getVisibleHeadlineIds();
2049                 } else {
2050                         visible_ids = cdmGetVisibleArticles();
2051                 }
2052
2053                 var ids_to_mark = new Array();
2054
2055                 if (!below) {
2056                         for (var i = 0; i < visible_ids.length; i++) {
2057                                 if (visible_ids[i] != getActiveArticleId()) {
2058                                         var e = $("RROW-" + visible_ids[i]);
2059
2060                                         if (e && e.className.match("Unread")) {
2061                                                 ids_to_mark.push(visible_ids[i]);
2062                                         }
2063                                 } else {
2064                                         break;
2065                                 }
2066                         }
2067                 } else {
2068                         for (var i = visible_ids.length-1; i >= 0; i--) {
2069                                 if (visible_ids[i] != getActiveArticleId()) {
2070                                         var e = $("RROW-" + visible_ids[i]);
2071
2072                                         if (e && e.className.match("Unread")) {
2073                                                 ids_to_mark.push(visible_ids[i]);
2074                                         }
2075                                 } else {
2076                                         break;
2077                                 }
2078                         }
2079                 }
2080
2081                 if (ids_to_mark.length == 0) {
2082                         alert(__("No articles found to mark"));
2083                 } else {
2084                         var msg = __("Mark %d article(s) as read?").replace("%d", ids_to_mark.length);
2085
2086                         if (getInitParam("confirm_feed_catchup") != 1 || confirm(msg)) {
2087
2088                                 for (var i = 0; i < ids_to_mark.length; i++) {
2089                                         var e = $("RROW-" + ids_to_mark[i]);
2090                                         e.className = e.className.replace("Unread", "");
2091                                 }
2092
2093                                 var query = "?op=rpc&subop=catchupSelected" +
2094                                         "&cmode=0" + "&ids=" + param_escape(ids_to_mark.toString());
2095
2096                                 new Ajax.Request("backend.php", {
2097                                         parameters: query,
2098                                         onComplete: function(transport) {
2099                                                 catchup_callback2(transport);
2100                                         } });
2101
2102                         }
2103                 }
2104
2105         } catch (e) {
2106                 exception_error("catchupRelativeToArticle", e);
2107         }
2108 }
2109
2110 function cdmExpandArticle(a_id) {
2111         try {
2112                 var id = 'CICD-' + a_id;
2113
2114                 try {
2115                         Element.hide("CEXC-" + a_id);
2116                 } catch (e) { }
2117
2118                 Effect.Appear(id, {duration : 0.5,
2119                         beforeStart: function(effect) {
2120                                 var h_id = 'CICH-' + a_id;
2121                                 var h_elem = $(h_id);
2122                                 if (h_elem) { h_elem.style.display = "none"; }
2123
2124                                 toggleUnread(a_id, 0);
2125                         }});
2126
2127
2128         } catch (e) {
2129                 exception_error("cdmExpandArticle", e);
2130         }
2131
2132 }
2133
2134 function fixHeadlinesOrder(ids) {
2135         try {
2136                 for (var i = 0; i < ids.length; i++) {
2137                         var e = $("RROW-" + ids[i]);
2138
2139                         if (e) {
2140                                 if (i % 2 == 0) {
2141                                         e.className = e.className.replace("even", "odd");
2142                                 } else {
2143                                         e.className = e.className.replace("odd", "even");
2144                                 }
2145                         }
2146                 }
2147         } catch (e) {
2148                 exception_error("fixHeadlinesOrder", e);
2149         }
2150 }
2151
2152 function hideReadHeadlines() {
2153         try {
2154
2155                 var ids = false;
2156                 var vis_ids = new Array();
2157
2158                 if ($("headlinesList")) {
2159                         ids = getVisibleHeadlineIds();
2160                 } else {
2161                         ids = cdmGetVisibleArticles();
2162                 }
2163
2164                 var read_headlines_visible = true;
2165
2166                 for (var i = 0; i < ids.length; i++) {
2167                         var row = $("RROW-" + ids[i]);
2168
2169                         if (row && row.className) {
2170                                 if (read_headlines_visible) {
2171                                         if (row.className.match("Unread") || row.className.match("Selected")) {
2172                                                 Element.show(row);
2173                                                 vis_ids.push(ids[i]);
2174                                         } else {
2175                                                 //Effect.Fade(row, {duration : 0.3});
2176                                                 Element.hide(row);
2177                                         }
2178                                 } else {
2179                                         Element.show(row);
2180                                         vis_ids.push(ids[i]);
2181                                 }
2182                         }
2183                 }
2184
2185                 fixHeadlinesOrder(vis_ids);
2186
2187                 read_headlines_visible = !read_headlines_visible;
2188
2189         } catch (e) {
2190                 exception_error("hideReadHeadlines", e);
2191         }
2192 }
2193
2194 function invertHeadlineSelection() {
2195         try {
2196                 var rows = new Array();
2197                 var r = false;
2198
2199                 if (!isCdmMode()) {
2200                         r = document.getElementsByTagName("TR");
2201                 } else {
2202                         r = document.getElementsByTagName("DIV");
2203                 }
2204
2205                 for (var i = 0; i < r.length; i++) {
2206                         if (r[i].id && r[i].id.match("RROW-")) {
2207                                 rows.push(r[i]);
2208                         }
2209                 }
2210
2211                 for (var i = 0; i < rows.length; i++) {
2212                         var nc = rows[i].className;
2213                         var id = rows[i].id.replace("RROW-", "");
2214                         var cb = $("RCHK-" + id);
2215
2216                         if (!rows[i].className.match("Selected")) {
2217                                 nc = nc + "Selected";
2218                                 cb.checked = true;
2219                         } else {
2220                                 nc = nc.replace("Selected", "");
2221                                 cb.checked = false;
2222                         }
2223
2224                         rows[i].className = nc;
2225
2226                 }
2227
2228         } catch (e) {
2229                 exception_error("invertHeadlineSelection", e);
2230         }
2231 }
2232
2233 function getArticleUnderPointer() {
2234         return post_under_pointer;
2235 }
2236
2237 function zoomToArticle(id) {
2238         try {
2239                 var w = window.open("backend.php?op=view&mode=zoom&id=" + param_escape(id),
2240                         "ttrss_zoom_" + id,
2241                         "status=0,toolbar=0,location=0,width=450,height=300,scrollbars=1,menubar=0");
2242
2243         } catch (e) {
2244                 exception_error("zoomToArticle", e);
2245         }
2246 }
2247
2248 function scrollArticle(offset) {
2249         try {
2250                 if (!isCdmMode()) {
2251                         var ci = $("content-insert");
2252                         if (ci) {
2253                                 ci.scrollTop += offset;
2254                         }
2255                 } else {
2256                         var hi = $("headlinesInnerContainer");
2257                         if (hi) {
2258                                 hi.scrollTop += offset;
2259                         }
2260
2261                 }
2262         } catch (e) {
2263                 exception_error("scrollArticle", e);
2264         }
2265 }
2266
2267 function show_labels_in_headlines(transport) {
2268         try {
2269                 if (transport.responseXML) {
2270                         var info = transport.responseXML.getElementsByTagName("info-for-headlines")[0];
2271
2272                         var elems = info.getElementsByTagName("entry");
2273
2274                         for (var l = 0; l < elems.length; l++) {
2275                                 var e_id = elems[l].getAttribute("id");
2276
2277                                 if (e_id) {
2278
2279                                         var ctr = $("HLLCTR-" + e_id);
2280
2281                                         if (ctr) {
2282                                                 ctr.innerHTML = elems[l].firstChild.nodeValue;
2283                                         }
2284                                 }
2285
2286                         }
2287
2288                 }
2289         } catch (e) {
2290                 exception_error("show_labels_in_headlines", e);
2291
2292         }
2293 }
2294
2295 function toggleHeadlineActions() {
2296         try {
2297                 var e = $("headlineActionsBody");
2298                 var p = $("headlineActionsDrop");
2299
2300                 if (!Element.visible(e)) {
2301                         Element.show(e);
2302                 } else {
2303                         Element.hide(e);
2304                 }
2305
2306                 e.scrollTop = 0;
2307                 e.style.left = (p.offsetLeft + 1) + "px";
2308                 e.style.top = (p.offsetTop + p.offsetHeight + 2) + "px";
2309
2310         } catch (e) {
2311                 exception_error("toggleHeadlineActions", e);
2312         }
2313 }
2314
2315 function publishWithNote(id, def_note) {
2316         try {
2317                 if (!def_note) def_note = '';
2318
2319                 var note = prompt(__("Please enter a note for this article:"), def_note);
2320
2321                 if (note != undefined) {
2322                         togglePub(id, false, false, note);
2323                 }
2324
2325         } catch (e) {
2326                 exception_error("publishWithNote", e);
2327         }
2328 }
2329
2330 function emailArticle(id) {
2331         try {
2332                 if (!id) {
2333                         var ids = getSelectedArticleIds2();
2334
2335                         if (ids.length == 0) {
2336                                 alert(__("No articles are selected."));
2337                                 return;
2338                         }
2339
2340                         id = ids.toString();
2341                 }
2342
2343                 displayDlg('emailArticle', id,
2344                    function () {
2345                                 document.forms['article_email_form'].destination.focus();
2346
2347                            new Ajax.Autocompleter('destination', 'destination_choices',
2348                                    "backend.php?op=rpc&subop=completeEmails",
2349                                    { tokens: '', paramName: "search" });
2350
2351                         });
2352
2353         } catch (e) {
2354                 exception_error("emailArticle", e);
2355         }
2356 }
2357
2358 function emailArticleDo() {
2359         try {
2360                 var f = document.forms['article_email_form'];
2361
2362                 if (f.destination.value == "") {
2363                         alert("Please fill in the destination email.");
2364                         return;
2365                 }
2366
2367                 if (f.subject.value == "") {
2368                         alert("Please fill in the subject.");
2369                         return;
2370                 }
2371
2372                 var query = Form.serialize("article_email_form");
2373
2374 //              console.log(query);
2375
2376                 new Ajax.Request("backend.php", {
2377                         parameters: query,
2378                         onComplete: function(transport) {
2379                                 try {
2380
2381                                         var error = transport.responseXML.getElementsByTagName('error')[0];
2382
2383                                         if (error) {
2384                                                 alert(__('Error sending email:') + ' ' + error.firstChild.nodeValue);
2385                                         } else {
2386                                                 notify_info('Your message has been sent.');
2387                                                 closeInfoBox();
2388                                         }
2389
2390                                 } catch (e) {
2391                                         exception_error("sendEmailDo", e);
2392                                 }
2393
2394                         } });
2395
2396         } catch (e) {
2397                 exception_error("emailArticleDo", e);
2398         }
2399 }